Trematodon paradoxus Hornsch.
  • Linnaea


Cite taxon page as 'WFO (2020): Trematodon paradoxus Hornsch. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-0001158077. Accessed on: 05 Apr 2020'

Diagnostic Description

This species resembles T. divaricatus in many respects; however, T. paradoxus is generally smaller and lacks a peristome. The spores of this species also approach those of T. divaricatus, but they are not as highly ornamented and the tetrad scar is weak, when present.

  • Provided by: [B].e-Flora of South Africa
    • Source: [
    • 2
    • ]. 

    Morphology

    Plants very small, in scattered groups, green; terricolous. Stems 1-2 mm high; in section central strand small, inner cortical cells large, thin-walled, outer cortical cells in 2 rows, small, incrassate, red. Leaves erect, weakly flexuose dry, erect-spreading wet; oval to oblong, abruptly linear, 1.5-2.0 mm long; apex obtuse, occasionally acute; margins plane, entire, unistratose. Costa sub-percurrent, in section guide cells 4, exposed ventrally, dorsal stereid band 1-2 cells thick, dorsal surface cells larger, weakly thickened, occasionally extending upward interrupting stereid band. Laminal cells bulging, rectangular above shoulders, in 1-3 rows on either side of costa at apex; marginal cells bulging; basal cell long-rectangular or oblong-hexagonal, lax. Perichaetial leaves oblong-subulate, 2.0-2.5 mm long. Seta erect to flexuose dry, 2-3 mm long, yellow; capsule erect, yellow, urn 1 mm long, neck 0.8-1.0 mm long, strumose; peristome absent; operculum rostrate, 0.6-0.8 mm long; calyptra cucullate, covering operculum and capsule mouth; spores ± round, 30-35 µm, coarsely papillose.

  • Provided by: [B].e-Flora of South Africa
    • Source: [
    • 2
    • ]. 

    Plants very small, in scattered groups. Stems 1-2 mm long. Leaves erect to erect-spreading, oval to oblong, abruptly linear, 1.5-2.0 mm long; apex obtuse to acute; margins entire, unistratose; costa subpercurrent. Laminal cells bulging, rectangular; basal cells lax. Capsule erect, neck strumose; peristome absent. Spores round, coarsely papillose.

  • Provided by: [B].e-Flora of South Africa
    • Source: [
    • 3
    • ]. 

    Habitat

    Terricolous.

  • Provided by: [B].e-Flora of South Africa
    • Source: [
    • 2
    • ]. 

    Mesic Grassland. On soil.

  • Provided by: [B].e-Flora of South Africa
    • Source: [
    • 3
    • ]. 

    Distribution

    Known from the Central African Republic, Zimbabwe and South Africa, Trematodon paradoxus was described from Table Mountain. Additional material from the southwestern Cape has not been seen. Recent specimens have been collected in the southeastern Transvaal, eastern Orange Free State, Zululand, Natal, and the eastern Cape.

  • Provided by: [B].e-Flora of South Africa
    • Source: [
    • 2
    • ]. 

      Bibliography

    • 1 Linnaea
    • 2 Magill, RE. 1981. Ditrichaceae to Grimmiaceae. In: O.A. Leistner. Fl. S. Africa Bryophyta(1,1): 83 - 281.
    • 3 van Rooy, J; Retief, E; Meyer, NL. 2017. Bryophytes. In: E Retief & NL Meyer (eds), Plants of the Free State: Inventory and identification guide. Strelitzia 38: 30 - 88. South African National Biodiversity Institute, Pretoria.

     Information From

    Bruchiaceae
    World Flora Online Data. 2017.
    • A CC0 1.0 Universal (CC0 1.0).
    e-Flora of South Africa
    e-Flora of South Africa. v1.21. 2018. South African National Biodiversity Institute. http://ipt.sanbi.org.za/iptsanbi/resource?r=flora_descriptions&v=1.21
    • B All Rights Reserved
    World Flora Online consortium
    http://www.worldfloraonline.org/organisation/WFO
    World Flora Online Data. 2018.
    • C CC0 1.0 Universal (CC0 1.0).